The ear consists of three areas—the outer, middle, and inner ear. The nose is the organ of smell and is part of the peripheral nervous system. The throat is a ring-like muscular tube that acts as the passageway for air, food, and liquid....more

An ophthalmologist is either a medical doctor (M.D.) or an osteopathic physician (D.O.). An optometrist is a doctor of optometry (O.D.) but is not a medical doctor. An optician is a technician who fits eyeglasses....more

When your body can’t make enough insulin or can’t use insulin, it is called type 2 diabetes. Insulin helps the cells in the body absorb glucose, or sugar, for energy. Without insulin, glucose builds up in the blood resulting in high blood sugar....more

Diabetic retinopathy is a leading cause of blindness in American adults. It’s caused by changes in the blood vessels of the retina, the light sensitive layer of tissue at the back of the inner eye. In some people, retinal blood vessels may swell and leak fluid. In others, abnormal new blood vessels grow on the surface of the retina. These changes may result in vision loss or blindness....more

The good news is that breast cancer can be treated successfully. Treatments include surgery, radiation therapy, chemotherapy, hormonal therapy, or any combination of these. Here's a closer look at each....more

Arthritis and other rheumatic diseases are common conditions that cause pain, swelling, and limited movement. They affect joints and connective tissues around the body. Millions of people in the U.S. have some form of arthritis....more

There is no sure way to prevent prostate cancer. Some risk factors for prostate cancer are not within your control. But you can do some things that may help lower your risk of getting prostate cancer....more